rossi.fstools.fs.ext2fs
Class Ext2File

java.lang.Object
  rossi.fstools.fs.ext2fs.Ext2File

All Implemented Interfaces:

File, FsObject

public class Ext2File

extends java.lang.Object

implements File

Representation of a file.

Field Summary

protected java.util.List	blkPointerList
protected BlockReader	reader
protected Ext2SuperBlock	sb
protected long	size
protected long	sizeRemaining
protected java.util.List	slackList

Constructor Summary

Ext2File(Ext2SuperBlock sb, long fileSize, BlockReader reader)
Create a file.

Method Summary

void	addDirectBlock(long blocknum) Adds the specified block to the file.
void	addIndirectBlock(long blocknum, int level)
BlockPointerInputStream	getData() Get a BlockPointerInputStream to the data contained within the file.
BlockPointerInputStream	getSlack() Get a BlockPointerInputStream to the slack space contained at the end of the file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

blkPointerList

protected java.util.List blkPointerList

slackList

protected java.util.List slackList

size

protected long size

sizeRemaining

protected long sizeRemaining

reader

protected BlockReader reader

sb

protected Ext2SuperBlock sb

Constructor Detail

Ext2File

public Ext2File(Ext2SuperBlock sb,
                long fileSize,
                BlockReader reader)

Create a file.

Parameters:

sb - a Ext2SuperBlock

fileSize - The length of the file from its Inode.

reader - a BlockReader to read the disk.

Method Detail

addDirectBlock

public void addDirectBlock(long blocknum)

Adds the specified block to the file.

Parameters:

blocknum - block number of the block to be added.

addIndirectBlock

public void addIndirectBlock(long blocknum,
                             int level)
                      throws java.io.IOException

Parameters:

blocknum - the block number of the (single, double, tripply) indirect block

level - of indirection -- 0 = direct, 1 = first indirect...

Throws:

java.io.IOException

getData

public BlockPointerInputStream getData()

Description copied from interface: File

Get a BlockPointerInputStream to the data contained within the file.

Specified by:

getData in interface File

Returns:

BlockPointerInputStream - an input stream of the file's data.

See Also:

BlockPointerInputStream

getSlack

public BlockPointerInputStream getSlack()

Description copied from interface: File

Get a BlockPointerInputStream to the slack space contained at the end of the file.

Specified by:

getSlack in interface File

Returns:

BlockPointerInputStream - an input stream of the file's slack data.

See Also:

BlockPointerInputStream